(Topic ID: 66444)

Stern Big Game- replace Bridge Rectifier?

By Aladdin

10 years ago



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  • 4 posts
  • 2 Pinsiders participating
  • Latest reply 10 years ago by Aladdin
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#1 10 years ago

This is a Stern TA-100 board.
I think the BR1 is out so the question is should I just buy new BR's and repair the board?

The board is clean and shows no burn on the connectors.
The Feautre LIghts are all out. I did get them to work for awhile because I changed all fuses. removed the connectors and cleaned the contacts. I also removed the three screws going into the three BR's, took the heat sink off, but didn't replace the silicone!!!!! (newbie mistake!)
I left the machine on for the evening then the Feature Lights went out. My thought is that without the Silicone, the BR1 burnt out.

I've got about 2 Volts coming from the TP-1 test point. It should be higher than that I believe.
(the pic has the old fuses and is missing one)
photo (10).JPGphoto (10).JPG
So is the correct troubleshoot to replace the three BR's on the board, (do the new ones with the heat sink on top) and see what happens?

Thoughts are welcome!!!!

Thanks!!!!

#2 10 years ago

Replace and reflow those fuse holders. Replace the BR's and try to clean up those solder joints a bit by removing ALL the solder and then flow with new solder

#3 10 years ago

Thanks, that's probably the best. The 20AMP F5 Gen ILL fuse runs really HOT! I bet the fuse holder reflow will help.

#4 10 years ago

Reflowing the solder on the bridge rectifier worked!!!!
The feature lights are back on.
I'm not going to do anymore work to the board unless it breaks!

That's a lessen in reflowing solder.

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